According to MTV, he's working with the nonprofit Charity: Water, requesting that his fans donate money to the cause that brings clean water to developing nations.

"I have had an incredible year and it is all due to the fans helping me live my dream. I'm turning 17 years old on Tuesday and have so much to be grateful for!" Bieber wrote on the charity's website. "So this year, I really want my birthday to be all about helping others. Instead of asking for gifts, I'm asking friends, family and fans to consider donating $17 for my 17th birthday to help make a change," he continued. "One hundred percent of all donations go directly to building clean water projects in developing countries with Charity: Water, and we'll be able to see photos and GPS of the projects we helped build!"

"I'm really so grateful for my family, friends and fans — and I believe we can do something big to help bring clean water to people in need," he added. "Even if you don't have $17 to give, I just ask you to go out in your community and try and make a positive difference. Even the smallest act of kindness can go a long way. Thanks and God Bless! #makeachange."

As it turns out, his call has already been answered by his fans. Charity: Water tweeted, " Thanks to all you Beliebers, we hit $7 million raised on mycharity: water today! #makeachange."